64. Preparation and change of regional coastal plans---(1) There shall
 at all times be one regional coastal plan for the coastal marine area of
 each region prepared in the manner set out in the First Schedule.

   (2) A regional coastal plan may form part of a regional plan where it
 is considered appropriate in order to promote the integrated management
 of a coastal marine area and any related part of the coastal
 environment.

   (3) Where a regional coastal plan forms part of a regional plan, the
 Minister of Conservation shall approve only that part which relates to
 the coastal marine area.

   (4) A regional coastal plan may be changed in the manner set out in
 the First Schedule.